Mathematics, 31.07.2019 08:30, person76

Which statement is not always true? a. the sum of two rational numbers is rational. b. the product of two irrational numbers is rational. c. the sum of a rational number and an irrational number is irrational. d. the product of a nonzero rational number and an irrational number is irrational.

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Which statement is not always true? a. the sum of two rational numbers is rational. b. the product...